<template>
<div class="app">
  <div class="login">
    <div class="login_img">
      <img src="../assets/logo.png" alt />
    </div>
    <el-form
      ref="loginFormRef"
      :model="loginform"
      :rules="loginrules"
      class="login_form"
      label-width="0"
    >
      <el-form-item prop="username">
        <el-input v-model="loginform.username" prefix-icon="iconfont icon-user"></el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input v-model="loginform.password" type="password" prefix-icon="iconfont icon-3702mima"></el-input>
      </el-form-item>
      <el-form-item class="btns">
        <el-button type="primary" @click="login">登录</el-button>
        <el-button type="info" @click="resetLoginFormRef">重置</el-button>
      </el-form-item>
    </el-form>
  </div>
</div>
</template>
<script>
export default {
  data() {
    return {
      loginform: {
        username: 'admin',
        password: '123456'
      },
      loginrules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 5, message: '长度在 3 到 5 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 12, message: '长度在 6 到 12 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    resetLoginFormRef() {
      // 重置
      this.$refs.loginFormRef.resetFields()
    },
    login() {
      this.$refs.loginFormRef.validate(async valid => {
        if (!valid) return
        const {data:result} = await this.$http.post('/login', this.loginform)
        console.log(result)
        if (result.meta.status !== 200) return this.$message.error('登录失败')
        this.$message.success('登录成功')
        if(!result.data.token) return 
        window.sessionStorage.setItem('token',result.data.token)
        this.$router.push('/home')
      })
    } 
  }
}
</script>

<style lang='css' scoped>
.app {
  background-color: #2b4b6b;
  height: 100%;
}
.login {
  width: 450px;
  height: 300px;
  background-color: #fff;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  border-radius: 3px;
}
.login_img {
  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 1px solid #eee;
  padding: 10px;
  background-color: #fff;
}
img {
  width: 130px;
  height: 130px;
  border-radius: 50%;
  background-color: #eee;
}
.btns {
  float: right;
}
.login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}
</style>